产品名称NAME：Wollastonite(硅灰棉)
产品描述PRODUCTION DESCRIPTION：
Wollastonite is a widely used friction material reinforced fiber, which is gradually replace asbestos as a main reinforced fiber during the friction material production, such as brake linings, brake pads, and other brake system friction material.
颗粒度GRANULARITY（筛网分析 SIEVE ANALYSIS，颗粒大小PARTICLE SIZE）
长度Length of Fiber (lf)： 0.384mm
直径Diameter of Fiber (df)： 20μm
长径比Length to Diameter Ratio (lf/df)： 18
外观 APPEARANCE
形状Shape： Needle-like fiber
颜色Color： White
主要技术参数MAIN SPECIFICATION
比重 Specific Gravity（g/cm3） 2.8
容积密度 Bulk Density（g/cm3） 0.6
含水量 Moisture Rate（%） ＜1.0%
熔点Melting point (℃) 1540
莫氏硬度 Hardness(Mohs) 4.5-4.8
化学成分 CHEMICAL COMPOSITION
| 组成Composition | SiO2 | CaO | Al2O3 | Fe2O3 |
| 比例Rate（%w.t.） | 45-52 | 42-48 | ＜0.3 | ＜0.26 |
包装跟存贮PACKAGE AND STORAGE
1. 25KG/bag, double sheet paper bags with plastic bag.
2. Opened bags must be carefully resealed and kept upright to prevent leakage. Stored in original packages in a dry, cool and well ventilated areas to prevent from direct sunlight.
3. Use appropriate to avoid environment contamination.